package cn.tedu.lmx.jdbc;

import java.sql.Connection;
import java.sql.DriverManager;
import java.sql.ResultSet;
import java.sql.Statement;

public class JdbcSelect {
    public static void main(String[] args) throws Exception{
        //1.加载驱动类
        Class.forName("com.mysql.jdbc.Driver");
        //2.获取链接
        String url = "jdbc:mysql://localhost:3306/test?useSSL=false";
        String username="root";
        String password="root";
        Connection connection = DriverManager.getConnection(url,username,password);

        //3.创建陈述句
        Statement statement = connection.createStatement();
        //4.执行查询
        //
        String sql = "SELECT id, username FROM `user`";
        ResultSet set = statement.executeQuery(sql);

        //5.获取数据
        // set.next()
       while(set.next()) {
           long id = set.getLong(1);
           String name = set.getString(2);
           System.out.println("id="+id+","+"name="+name);
       }
    }
}
